@startuml !unquoted function Call($from, $to, $text = "calls") !$sq="'" !$dq='"' !$def = '[' + $dq + $from + $dq +']->[' +$dq + $to + $dq + '] :' + $dq + $text + $dq !return $def !endfunction Call(a 1, b 1) !unquoted function $defineCall2($newDefault) !$sq="'" !$dq='"' !$def = '!unquoted procedure Call2($from, $to, $text = ' + $dq + $newDefault + $dq + ')' + %newline() !$def = $def + '[' + $dq + '$from' + $dq +']->[' +$dq + '$to' + $dq + '] :' + $dq + '$text' + $dq + %newline() !$def = $def + '!endprocedure' + %newline() !return $def !endfunction ' $defineCall2("is called via message") ' with following include call, could it work ' !includestring $defineCall2("is called via message") !include $defineCall2("is called via message") Call2(c 1, d 1) @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art